[D8902AAP], Letter from Joseph Hutchinson to Arthur Edwin Kennelly, October 11th, 1889

Item

Abstract

Re your favor of the 10th last re the percentage of mercury in meter plates, knowing a little about it, it suggests itself to me that possibly the variation in the percentage of mercury might work some change on the constant on which bills are made up. This is probably not so, or you would have mentioned it. Please advise me, however, for we are today writing the Edison Manuf. Co to make all plates that are made hereafter with three per cent of mercury instead of five. This is done without consideration with the Standardizing Bureau as we understand that it no longer exists.

Date

1889-10-11

Decade

1880-1889

Type

Identifier

D8902AAP

Folder Set

D8902

Title

[D8902AAP], Letter from Joseph Hutchinson to Arthur Edwin Kennelly, October 11th, 1889

Microfilm ID

125:53

Publisher

Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University